CVE-2014-4971

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 23.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-07-26 · updated 2026-06-17
Weakness: CWE-20

Description

Microsoft Windows XP SP3 does not validate addresses in certain IRP handler routines, which allows local users to write data to arbitrary memory locations, and consequently gain privileges, via a crafted address in an IOCTL call, related to (1) the MQAC.sys driver in the MQ Access Control subsystem and (2) the BthPan.sys driver in the Bluetooth Personal Area Networking subsystem.

Affected products

Microsoft Windows XP Service Pack 3: all versions

References

http://blogs.technet.com/b/srd/archive/2014/10/14/accessing-risk-for-the-october-2014-security-updates.aspx
http://packetstormsecurity.com/files/127535/Microsoft-XP-SP3-BthPan.sys-Arbitrary-Write-Privilege-Escalation.html
http://packetstormsecurity.com/files/127536/Microsoft-XP-SP3-MQAC.sys-Arbitrary-Write-Privilege-Escalation.html
http://packetstormsecurity.com/files/128674/Microsoft-Bluetooth-Personal-Area-Networking-BthPan.sys-Privilege-Escalation.html
http://seclists.org/fulldisclosure/2014/Jul/96
http://seclists.org/fulldisclosure/2014/Jul/97
http://secunia.com/advisories/60974
http://www.exploit-db.com/exploits/34112
http://www.exploit-db.com/exploits/34131
http://www.exploit-db.com/exploits/34982
http://www.osvdb.org/109387
http://www.securityfocus.com/archive/1/532843/100/0/threaded

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